import 'dart:convert';

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:powplugin/powplugin.dart';


void main() {
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';

  @override
  void initState() {
    super.initState();
    initPlatformState();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      platformVersion = await Powplugin.platformVersion;
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: CupertinoButton(
            child: Text('生成 xls'),
            color: Colors.purple,
            onPressed: () async {
              // var content = [{'name':'jiangjie','age':'2'},{'name':'jiangjie2','age':'23'}];
              // var pth = await Powplugin.generateExcel(content);
              // print(pth);

              String contentjson = await rootBundle.loadString('assets/content.json');
              var contentlist = jsonDecode(contentjson);
              var excelpath = await Powplugin.generateExcel(contentlist);
              print('excel原生处理完，dart 拿到了: $excelpath');


            },

          )
        ),
      ),
    );
  }
}
